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Anestetic [448]
4 years ago
9

A sphere has a diameter of 8 cm. Which statements about the sphere are true? Check all that apply.

Mathematics
2 answers:
Natalija [7]4 years ago
6 0

Answer:

Step-by-step explanation:

diameter/2=radius

if diameter=8cm, then radius=8/2=4 (A is corect)

also, C is correct

V=(4/3)(pi)(r^3)=(4/3)(3.14158265)(4^3)=256/3 pi cm^3 so answer is F

A, C, and F are the answers

Inessa [10]4 years ago
4 0

The answers are the first, third, and last. I took the test.

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Work at a convenience store 60% of your time, and earn $11.00 an hour. Referee games at your city park 25% of your time, and ear
pogonyaev

Answer:

13.75

Step-by-step explanation:

The expected value of the hourly wage is the sum of the probabilities (percentage of time spent on each job) multiplied by the payoff (money earned) from each possible occurrence (job):

(0.6 × 11) + (0.25 × 19) + (0.15 × 16) = $13.75.

3 0
3 years ago
The number of typographical errors on a page of the first booklet is a Poisson random variable with mean 0.2. The number of typo
muminat

Answer:

The required probability is 0.55404.

Step-by-step explanation:

Consider the provided information.

The number of typographical errors on a page of the first booklet is a Poisson random variable with mean 0.2. The number of typographical errors on a page of second booklet is a Poisson random variable with mean 0.3.

Average error for 7 pages booklet and 5 pages booklet series is:

λ = 0.2×7 + 0.3×5 = 2.9

According to Poisson distribution: {\displaystyle P(k{\text{ events in interval}})={\frac {\lambda ^{k}e^{-\lambda }}{k!}}}

Where \lambda is average number of events.

The probability of more than 2 typographical errors in the two booklets in total is:

P(k > 2)= 1 - {P(k = 0) + P(k = 1) + P(k = 2)}

Substitute the respective values in the above formula.

P(k > 2)= 1 - ({\frac {2.9 ^{0}e^{-2.9}}{0!}} + \frac {2.9 ^{1}e^{-2.9}}{1!}} + \frac {2.9 ^{2}e^{-2.9}}{2!}})

P(k > 2)= 1 - (0.44596)

P(k > 2)=0.55404

Hence, the required probability is 0.55404.

4 0
3 years ago
BRAINLIEST TO THE BEST ANSWER !!!!
TiliK225 [7]
Which equation am I looking at
4 0
3 years ago
X-2y=10 x+3y=5 please hellppppppp
Marta_Voda [28]

Answer:

x=8,y=-1

Step-by-step explanation:

x-2y=10

x=10+2y

10+2y+3y=5

5y=-5

y=-1

x-2(-1)=10

x=8

3 0
3 years ago
Read 2 more answers
6-3/4x+1/3=1/2 x+5<br> a.2<br> b.3<br> c.6<br> d.12
Gekata [30.6K]
6-3/4x+1/3=1/2x+5
6+1/3-5=1/2x+3/4x
4/3=5/4x
x=16/15
5 0
3 years ago
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